Sand cutting and piling machine



Dec. 13, 1927. 1,652,588 H. SMFTH SAND CUTTING AND FILING MACHINE Filed Nov, 9. 1921 2 Sheets-Sheet l Dec. 13, 1927.

H. SMlTH SAND CUTTING AND FILING MACHINE Filed Nov, 9. 1921 2 Sheets-Sheet 2 1 machine.

Patented Dec. 13, 1927.

j UNITED STAT 1,652,588 PATENT OFFICE.

HARRY smrrn, or CHICAGO, ILLINOIS, AssIGNoB. To Tris AMERICA-N scum! EQUIPMENT COMPANY, or NEW YORK, N. Y.,, A CORPORATION or 01:10.

SAND CUTTING AND. FILING I IIACHINE.

Application filedNoveinber 9, 1921. Serial No. 513,978.

This invention relates to sand cuttingmachines, and more, particularly pertains to novel and useful improvements in electricalily propelled and operated machines of this character.

An aim of this invention is to provide an improved construction of sand cutting machine wherein the machine may be electrically propelled andthe cutting mechanism may also be electrically operated, and manually adjusted to suit the operating conditions. 7

Another aim of this invention is toembody in a compact, durable and eflicient mechanical organization the features referred to above, and which may be manufactured at low cost and which possesses great flexibility and facilitates the cutting up of a sand pile-over which the machine is propelled.

The. machine involving the improvements of this invention comprises generally a chassis. mounted onsupporting and steering wheels, which chassis-is adapted to be propolled. over a. surface on which a pileofsand isdeposit'ed; a frame pivoted or otherwise .mounted on. the chassis for angular displacemerit, and a. cutting and piling wheel and motor mounted on said frame as a unit.

The cutting: wheel and driving meansare mounted as a unit on the frame whereby the adlillstment of the cutting wheel at the will of. the operator is facilitated; and lostv moron is overcome to a large extent.

- Other objects and advantages of this invention, together with a more complete un- .d'erstanding of the same will appear from the. following detail description and the claims, taken in, connection with. the accompanying drawings, in which,-

Fig, 1 l's-a side elevation of a sand cutting machine involving the improvements of my invention; p

Fig. 2 is an end view ofthe same looking from the operators position; and

Fig, 3 is-a plan view of thechassis of the Referring more particularly to the drawings, 5 indicates generally a chassis,.which for the sake of lightness, is constructed of tubing and assumes a fornr which will be resently' described. A frame generally designated F is pivoted on one end of the chassis and carriesthe cuttting elementland driving means therefor as a unit. Referrlng' now in detail to the construction of the chassis, the same is preferably composed of two pairs of end standards or posts 6 and 7 theposts 6 being connected at their medial portions by a transverse strut 8 and at their upper ends by a similarly arranged bar 9. Swivel brackets 1010 are mounted on the lower ends of the posts 6 and arebifurcated to receive wheels 11, a handle 12 being carried by and secured to the upper ends of said posts and projecting in a substantially horizontal direction therefrom. The wheels 11 permit the steering of the chassis at the will of'the operator.

The. other end. of the chassis carries driving wheels 1313, these wheels being mounted between the pairs of'posts 7 as best shown in Figs. 2 and 3, and the wheels 13 being substantially in longitudinal alinement with the steering wheels. 111'1. The posts 6 and 7 are connected at their upper ends by horizontal bars 1414, these bars being arranged. in divergent pairs so as to provide a rigid structure. Diagonally disposts 7, and struts 17 comprise bearing members 20 11 which the frame F is pivotally mounted;

The frame F'carries a cutting element 21,

reduction gearing 22 and a source ofpower for driving the cutting .wheel, such as an electric motor 23. The frame is pivoted at 20, and is provided atthe inner end with the mast24 which carries the conductors 25an'd control box 26 for the motor 23. The frame in this instance is also provided with a shield 27. The frame is. adapted to he tilted manually by means of the screw ro'd28 provided with a hand. wheel 29 and connected at its inner end to the bifurcated arm 30 rigidly secured to the shaft 31'. The sleeve 32.is pivoted to the chassis and the screw rod 28 passes through said sleeve when it is desired to change the angular disposition of the frame F. lalso provide sleeve connecsections of the shaft 34; are mounted in brackets 36 and 37 which brackets are secured to a transverse bar'38 and the shaft 31, as will be best seen in Fig. 3. The free ends of the sections of the shaft 34 carry pinions 38 and 39 which are in mesh with ring gears 40 and 41 fixedly secured to the inner sides of the driving wheels 1313, these ring gears being secured in place in any suitable manner, such as by means of motor 44 mountednear one end of the chassis on a pair of snaced angle bars 45. which angle bars have their respective free ends secured to the transverse bar 38, as at46, and to the transverse strut 8 as at 47. The motor shaft 48 extends toward the casing '35 and passes into a cylindrical housing 49 formed preferably integrally with said cas ing 35 and containing a worm 50 for engagement with the worm gear 51 contained in the casing 35, thus forming a worm gear diflerential drive for the machine.

A control box 52 is mounted to one side of the motor on a pair of metal straps 53 which straps extend between the transverse bar 38 and the strut 8, and are secured to each of the same in amanner similar to the angle bars 45. A switch handle 54 extends from the control box 52 and a similar control box 55 is mounted adjacent the control box 52 so that the speed and direction ofrotation of the motor 44 may be changed at will, The conductors from the controlbox, designated 56, are connected to the motor and to thecontrol box 55 and may also continue to the mast 24. Thus. the operator is enabled to start, stop and reverse the direction of travel 'of'the machine as becomes necessary, and as well to independently control the motor 23 for driving the cutting element.

Thus it will be observed that in the operationthe' cutting element may be rotated at a desired height above the surface on which a pile of sand is deposited so as to cut the pile of sand and then hv a reversal, of the direction of rotation of the cutting device the sand maybe piled in a heap convenient for further use.

While it is preferred that the construction of frame here shown be employed, any other suitable construction may be substituted, provided that the frame carries the cutting element and the motor for driving the same as a unit. V

- While a specific construction of this invention has been described, it will be observed that various minor changes in the details thereof may be resorted to where 7 said frame,

necessary, and I therefore reserve the right to make such changes as do not depart from the spirit and scope of the invention as claimed.

What I claim is:

j 1. In a sand cutting machine, in combination, a chassis, supporting and steering wheels therefor, a frame pivotally mounted on one end of saidchassis, a cutting element and driving means therefor mounted as a unit on said frame, a prime mover mounted on the chassis and connected with the supporting wheels for propelling the machine, and means on the chassishaving a slip connection with said frame for varying the angular disposition of the same.

2. In a sand cutting machine, a chassis mounted on wheels, a frame pivoted upon said chassis, sand cutting means carried by said frame, a prime mover for driving said cutting means and also carried by said frame, and means on said chassis for adjusting and locking said frame in relative angular disposition to said chassis, and a slip connection between said adjusting means and said frame.

3. In a sand cutting machine, a chassis mounted on wheels, a frame'pivoted upon said chassis, sand cutting means carried by said frame, a prime mover for driving said cutting means and i also carried by said frame, a substantially horizontal screw mounted on the chassis and connected'to the frame for adjusting the angular disposition of the same, and a slip connection between saidscrew and the frame for permitting movement of the frame independently of the screw. a

4. In a sand cutting machine, a chassis mounted at one end upon supporting wheels and at the other end upon steering wheels, a frame pivoted -at its medial portion upon one end of said chassis, and adapted to overhang one end of the chassis, a cutting wheel horizontally rotatably arranged on the overhanging portion of a prime mover for driving said wheel mounted on the other, end of said. frame, reduction gearing mounted on the frame between and operatively connected with the prime mover and cutting wheel, an arm extending from the pivot of said frame, a screw rod pivotally mounted on said chassis and having a one-way slip connection with said arm, and a hand wheel on the free end of said screw rod for manipulating the same for moving said frame aboutits pivot.

5. In a sand cutting machine, a chassis mounted at one end on supporting wheels and at the other end upon steering wheels, a handle mounted on said chassis whereby said machine may be manually controlled, a swinging frame pivotally mounted on said inder carried on said frame, a counterbalancing motor operatively connected for driving said 0 linder and mounted at the other end of sai frame and means associated with said frame for controlling the angular adjustment thereof.

6. In a sand cutting machine, a chassis mounted at one end on supporting wheels and at the other end upon pivotally mounted steering wheels, a handle mounted on said chassis on said other end whereby said machine may be manually controlled, a swinging frame pivotally mounted on said chassis adjacent said supporting wheels and adapted to overhang said chassis, a horizontally rotatable cutting cylinder carried on the overhanging portion of said frame, a counterbalancing motor operatively connected for driving said cylinder and mounted at the other end of said frame and means associated with said frame for controlling the angular adjustment thereof said means being mounted on said chassis adjacent said steering handle.

7. In a sand cutting machine, a chassis having a pair of driving wheels at one end thereof and a pair of wheels mounted for free rotation about a vertical axis for steering purposes at the other end thereof, a handle at said other end whereby said chassis may be guided, a motor mounted on said chassis and operatively connected to said driving wheels, a frame pivotally mounted adjacent said driving wheels, a rotary sand cutting element mounted at one end of said frame and adapted to operate adjacent the surface supporting said machine, a counterbalancing motor mounted at the other end of said frame and operatively connected to said cutting element and means adjacent said handle for manually controlling the angular adjustment of said frame whereby the vertical position of said cutting element may be controlled.

8. In a sand cutting machine, a chassis mounted at one end on supporting wheels and at the other end upon steering wheels, a swinging frame pivotally mounted on said chassis, a horizontally rotatable cutting cylinder carried on said frame, a counterbalancing motor operatively connected for driving said cylinder and mounted at the other end of said frameand means associated with said frame for controlling the angular ad justment thereof.

In witness whereof, I hereunto subscribe my name this 5th day of October, A. D.,

HARRY SMITH. 

